Polyols and polyurethanes, polyurethaneforms using the same

ABSTRACT

The present invention relates to a preparing method of polyols and polyurethane, polyurethaneforms using the same by depolymerizing the polyester, polyamide and polyurethane with the polymeric fatty acid monopoly hydroxyl alcoholide, and additionally react with the polybasic acid, polyol and amine to prepare acid value of 0.5˜1 DKOH/g, hydroxyl value of 10˜500 DKOH/g, and amine value of 1˜50 DKOH/g in polyol, and polyurethane and polyurethaneforms using the same. This is to transform the double bond of the unsaturated fatty acid from the component of the oils and fats in conjugate double bond to induce the Diesl-Alder reaction, and with the improvement of the reactivity to form stability combination in chemical structure to prevent the separate leaching appearance of fatty and fatty oil from the final product, and having the fine compatibility with the polyether-polyol as well as transparent and storage stability. Furthermore, it has 100% of solid with very low viscosity at the room temperature for easy handling while having a great reactivity with the isocyanate that this preparing polyol having excellent chemical and mechanical properties. And, in particular, by recycling the waste edible oil and waste synthetic resin that can be employed as industrially useful material for environment-friendly and economical advantage.

TECHNICAL FIELD

The Present invention relates to a process for preparing a polyol composition by deploymerizing the polyester, polyamide and polyurethane with the polymeric fatty acid monopoly hydroxyl alcoholide, and additionally react with the polybasic acid, polyhydric alcohol and amine having an acid value of 0.5˜1 □KOH/g, hydroxyl value of 10˜500 □KOH/g, and amine value of 1˜50 □KOH/g (in polyol), and polyurethane and polyurethaneforms using the same. This is to transform the double bond of the unsaturated fatty acid from the fatty ingredient in conjugate double bond to induce the Diesl-Alder reaction, and with the improvement of the reactivity to form solid combination in chemical structure to prevent the separated leaching phenomenon of fatty and fatty oil from the final product, and has the fine compatibility with the polyether-polyol as well as transparent and storage stability. Furthermore, it has 100% solid with very low viscosity at the room temperature for easy handling while having a great reaction with the isocyanate that this preparing method is prepared on polyol that has excellent chemical and mechanical properties.

BACKGROUND ART

In the past, the polyester polyol is prepared by reacting with the polybasic acid and polyhydricalcohol in condensation-polymerization reaction to reach appropriate acid value and hydroxyl value. Then it is completed and synthesize that it does not have good compatibility with the polyetherpolyol and others that are mainly used for polyurethaneforms, and it is unclear at the room temperature or too high of viscosity to use at the temperature of 60° C. to incur inconvenience and low stability and storage capability to generate substantial limitations in use. Furthermore, it has may problems in mechanical property of the forms and decline in insulation that there has been steady demand for improvement.

DISCLOSURE OF INVENTION Technical Problem

The present inventors have been intensely researching and studying to solve various problems associated with the previous technologies, and as a result, they found that upon subjecting to prepare polyol having good transparency, the low viscosity at the room temperature, stability, storage capability, and compatibility with the polyether-polyol by depolymerizing the polymer with the polymeric fatty acid monopoly hydroxyl alcoholide then add the polybasic acid and polyhydricalcohol to carry out the polycondensation reaction. Then apply the amine to prepare the amine adduct composition to obtain the polyol having function of surfactant that has transparency at the room temperature, low viscosity, fine stability and storage capability as well as great compatibility with the polyether-polyol in a way to provide the method to prepare fine properties of polyurethane and polyurethaneforms and polyol and polyurethaneforms prepared. therefore, It is an object of the present invention is to provide a process for preparing a polyol by recycling waste materials

Technical Solution

In order to solve the foregoing technical problems, the present invention is disclosed in the following first embodiment.

(a) reacting the polyhydricalcohol with the polymeric fatty acid glyceride ester that includes the waste edible oil to obtain the polymeric fatty acid monopoly hydroxyl alcoholide composition;

(b) Add the polyester that includes the waste PET to the composition of step (a) for depolymerization by trans-esterification reaction, then add the polybasic acid and polyhydricalcohol to control for appropriate acid value and hydroxyl value to obtain the depolymerization oligomer composition.

In order to solve the foregoing technical problems, the present invention is disclosed in the following second embodiment.

(a) reacting the polyhydricalcohol with the polymeric fatty acid glyceride ester that includes the waste edible oil to prepare the polymeric fatty acid monopolyhydroxyl alcoholide composition;

(b) Add the polyester that includes the waste PET to the composition of step (a) for depolymerization by the trans-esterification reaction, then add the polybasic acid and polyhydricalcohol to control for appropriate acid value and hydroxyl value to obtain the depolymerization oligomer composition;

(c) Add the amine to the composition of step (b) to obtain the polyol composition that contains the amine adduct having function of surfactant.

In order to solve the foregoing technical problems, the present invention is disclosed in the following third embodiment.

(a) reacting the polyhydricalcohol with the polymeric fatty acid glyceride ester that includes the waste edible oil to prepare the polymeric fatty acid monopolyhydroxyl alcoholide composition;

(b) Add the mixed wastes of the polyamide and waste PET to the composition of step (a) for depolymerization by the trans-esterification reaction, then add the polybasic acid and polyhydricalcohol to control for appropriate acid value and hydroxyl value to obtain the depolymerized oligomer composition.

In order to solve the foregoing technical problems, the present invention is disclosed in the following fourth embodiment.

(a) reacting the polyhdricalcohol with the polymeric fatty acid glyceride ester that includes the waste edible oil to obtain the polymeric fatty acid monopoly hydroxyl alcoholide composition;

(b) Add the mixed wastes of the polyamide and PET to the composition of step (a) for depolymerization by the trans-esterification reaction, then add the polybasic acid and polyol to control for appropriate acid value and hydroxyl value to obtain the depolymerized oligomer composition;

(c) Add the amine to the composition of step (b) to prepare the polyol composition that contains the amine adduct having the function of surfactant.

In order to achieve the foregoing technical problems, the present invention is disclosed in the following fifth embodiment.

(a) reacting the polyhydricalcohol with the polymeric fatty acid glyceride ester that includes the waste edible oil to obtain the polymeric fatty acid monopoly hydroxyl alcoholide composition

(b) Add the lump polyester-amide resin following the patent application of NO. 10-2004-0020944 in Korea to the composition of step (a) for the trans-esterification reaction, then control for appropriate acid value and hydroxyl value.

In order to solve the foregoing technical problems, the present invention is disclosed in the following sixth embodiment.

(a) reacting the polyhydricalcohol with the polymeric fatty acid glyceride ester that includes the waste edible oil to obtain the polymeric fatty acid monopolyhydroxyl alcoholide composition;

(b) Add the polybasic acid and polyhydricalcohol to the composition of step (a) and control for appropriate acid value and hydroxyl value to obtain the polycondensation polyester oligomer composition; and

(c) Add the amine to the composition of step (b) to obtain the polyol composition that contains the amine adduct having the function of surfactant.

BEST MODE FOR CARRYING OUT THE INVENTION

Next, the following is the detailed description on the method of providing the polyol for each embodiment.

In the embodiment 1, embodiment 2, embodiment 3, embodiment 4, embodiment 5, and embodiment 6 on the present invention, the waste edible oil that can be used in step (a) is the animal and vegetable oil that had been used and disposed from household, chicken house, fry specialty shop, fish bowl producer, ramen (instant noodle) producer and others, and the refined polymeric fatty acid glyceride ester is prepared by reacting with the catalysts, for example, lead oxide, magnesium hydroxide and others for 0.5˜5% by weight based on the weight of the oil and carried out in the range of 200˜290° C. for 2˜20 hours. specified example of The vegetable oils are Soy bean oil, corn oil, cotton seed oil, sunflower oil, castor oil, palm tree oil, peanut oil, palm oil and others while the animal oils are beef oil, pork oil, fish oil, hardened oil and others. The polyhydricalcohol that can be used in Step (a) are ethylene glycol, propylene glycol, diethylene glycol, 1.4 butane diol, 1.6 hexane diol, neopenthylglycol, dipropylene glycol, trimethylol propane, glycerol, and pentaerythritol, and they can be used alone or in mixture. They are desirable to add in the volume of 0.1˜10 ratio to the waste edible oil and polymeric fatty acid glyceride ester. The catalyst is desirable to use 0.1˜1% by weight based on the total weight of the reactant, for example, lead oxide, sodium hydroride, lithium carbonate and others. From the Step (b) polymer, the polyester is the chip obtained by mechanical crushing from PET polymer, waste PET fiber, waste PET bottle, waste PET product, waste polyester fiber, and polyester product is synthesized the terephthalic acid with ethylene glycol, and the mixed waste product is the waste beer PET bottle, mixed fiber of the polyester and polyamide, and the combined product of polyester and polyamide. specified examples of the poly-basicacid are phthalic anhydride, isophthalic acid and its ester, terephthalic acid and its ester, 5-DMSSIP, adipic acid and its ester, azelaic acid, Sebacic acid, anhydrous tetra hydrophthalic acid, anhydrous maleic acid, fumaric acid, itaconic acid, trimellitic, anhydrous trimellitic acid, anhydrous pyromellitic acid, succinic acid, cyclohexanedicarboxylic acid, naphthalene dicarboxylic acid, benzoic acid, dimer acid, C9˜C27 fatty acid and others. They can be used alone or in mixture. It would be desirable to add them for 1˜50% by weight to the products of Step (a). specified examples of the polyhydricalcohol are ethylene glycol, propylene glycol, 1.3 propane diol, 1.4 butane diol, 1.6 hexane diol, neopentyle glycol, di-ethylene glycol, di-propylene glycol, polyethylene glycol, poly-propylene glycol, PTMEG, alkylene oxide adduct of bisphenol A, tri-methylol propane, glycerol, pentaerythritol and others. They can be used alone or in mixture. It would be desirable to add them for 1˜70% by weight based on the total weight of the reactant. The amines that can be used in Step (c) are triethylamine, propylamine, butylamine, ethylenediamine, diethylenetriamine, triethylenetetramino, monoethanolamine, diethanolamine, triethanolamine, dimethyleethanolamine, hexamethylenediamine, piperidine and others. They can be used alone or in mixture. It would be desirable to add them for 1˜50% by weight to the products of Step (b). The catalysts for depolymerization at step (b) are the organic acid metal, tins, and alkali metal hydroxide. The substance is desirable to use the volume of 0.05˜5% by weight based on the weight of the reactant.

In order to solve the foregoing technical problems, The present invention is disclosed seventh embodiment.

(a) The waste polyurethane is reacted with the polymeric fatty acid monopoly hydroxyl alcoholide composition prepared at step (a) of first embodiment of the present invention to decompose the urethane combination and prepare the polyether oligomer composition; and

(b) Add the polybasic acid and polyhydricalcohol to the composition obtained from step (a) for polycondensation, then add the carboxylic acid to process the excessively contained amine to control the amine value to obtain the polyether-polyol composition.

Originally, when recycling the waste polyurethane only have used the polyol or amine for alcohol lysis or amino lysis reaction to decompose the urethane combination. And the decomposed products would have the presence of the amine and it has been emerged as a great difficulty in recycling of the polyurethane to remove it.

According to this embodiment, the amino group contained in the decomposed composition reacts first with the fatty acid in the molecule structure, and as needed, it reacts to the added carboxyl acid to become amide that the reaction control is available in reaction to the isocyanate to enable for recycling of polyurethane with the production of outstanding resin property. The polymeric fatty acid monopolyhydroxyl alcoholide on waste polyurethane on step (a) would be desirable to use the weight ratio of 1:0.1˜5. The catalyst is would be desirable to use 0.05˜5% by weight for organic acid metal, tins, and alkali metal hydroxide. In step (b), the carboxyl acid can use acetate acid, oxalic acid, benzoic acid, salicylic acid and others along or in mixture. It would be desirable to use them for 1˜30 weight % for the products.

The waste polyurethane is the chip obtained by mechanically crushing the insulation materials from refrigerator, artificial leather, sponge, cushion material, elastomer building material and others, and the urethane combination and disintegration temperature of the present invention is obtained by heating at 150˜270° C. for 1˜15 hours. Under 150° C., the time for disintegration is excessively lengthened, and for over 270° C., it is thermal integration that it would not be desirable.

The following is the invention that applied the polyol that uses the polyol following first through seventh embodiment to describe the preparing method of polyurethaneforms and polyurethane coating agent.

In using the polyol obtained from the first embodiment to seventh embodiment, it would be desirable to obtain the mixed polyol of hydroxyl value in 100˜500 □KOH/g by mixing the fresh polyether-polyol for having the hardness mechanical property of the polyurethaneforms and other requirements.

For specified examples of the above polyether polyol are ethylene glycol, di-ethyleglycol, propyleneglycol, trimethylpropane, glycerol, solbitol, bisphenol A ethylene oxide-propylene oxide adduct, glycerol propylene oxide adduct, pentaerythritol ethylene oxide propylene oxide adduct, sucrose propylene oxide, ethylene oxide adduct, solbitol ethylene oxide-propylene oxide adduct and others with the average hydroxy value of the mixed polyol composition for 100˜500, the NCO % of isocyanate for 30˜100, NCO/OH for 1.0˜1.5 and the specified examples of the above isocyanate are toluene-di isocyanate, kysylene di-isocyanate, Crude-MDI, MDI, polymeric MDI, hexa methylene di-isocyanate, isophlone di-isocyanate, isocyanate trimer, with the catalyst in amine, and for the concrete examples of it are tri-ethyl amine, ethanol amine, di-methyl ethanol amine, di-ethylene tri-amine, tri-ethylenedi-amine, hexadecyl di-methyl amine, N-methyle morpolyn, tetra methyle ethylenedi-amine, di-methyl cyclohexyl amine, di-alkyle piperadins and others. For their reacting substance, it is desirable to use the 1˜10% by weight.

Originally, CFC and HCFC were used as the blowing agent, but these substances are known to destroy the ozone layer of the earth that they are banned to use. Therefore, it is desirable to use for the replacement substances in pentane, cyclopentane and water together. The surfactant is desirable to use the silicone surfactant.

The polyurethaneforms of the present invention is formed basically in the chemical structure of polyol and isocyanate, and the polyol ingredient contains the blowing agent with the reacting catalyst containing the surfactant, additive agent and others to react with the isocyanate that the independent vapor of the blowing agent is obtained from the insulation and intensity in polyurethane that are required in the polyurethaneforms. Their properties are determined by the physical structure of cell diameter, cell dimension, cell distribution and other polyurethaneforms that they are significantly influenced by the reaction and compatibility of each material and fluidity at the time of ejection. In particular, the importance has to be placed in selecting the polyol, its configuration and combination.

The polyol obtained from the present invention has the partial solubility of the blowing agent, pentane and cyclopentane, and it increases the CO2 ejection pressure in and out of the cell to prepare the control of the physical structure of cell diameter, cell dimension, cell distribution and polyurethaneforms easy, and the polyurethaneforms with improved insulation capability and increased mechanical intensity can be prepared.

The polyurethane coating substance of the present invention is basically formed in the chemical structure of polyol and isocyanate, and the isocyanate is added to the polyol composition that mixes the promoting agent, coloring agent, additive agent, solvent and others to the polymer component to coat on the textile, non-woven fabric, wooden material and others to produce the artificial leather or coating on the lumber surface.

The polyurethane formative product of the present invention is basically formed in the chemical structure of polyol and isocyanate, the isocyanate is added to the polyol composition that mixes the promoting agent, additive agent, flame retardant, filler and others to use for synthetic wood, artificial wood, sculpture substance and others.

MODE FOR THE INVENTION

Refer to the following examples hereto to prepare detailed description for the preparing method of the polyol and the polyurethaneforms, polyurethane coating agent, and polyurethane formative work following from the embodiment 1 to embodiment 7 of the present invention. These examples are provided only for illustrating purpose the present invention and should not be construed as limiting the scope and spirit of the present invention.

Example 1 of Synthesis

700 g of Soy bean oil and 1 g of magnesium hydroxideon were charged to the reactor equipped with agitator, reflux condenser, thermometer, and nitrogen inlet and the mixture was heated under a stream of nitrogen for 15 hours at 250° C. for P of Gardener vapor viscosity meter to prepare of polymeric fatty acid glyceride ester.

Example 2 of Synthesis

700 g of fish oil and 1 g of lead oxide were charged to the reactor equipped with agitator, reflux condenser, thermometer, and nitrogen inlet and the mixture was heated under a stream of nitrogen for 15 hours at 250° C. for M of Gardener vapor viscosity meter to prepare of polymeric fatty acid glyceride ester.

Example 3 of Synthesis

450 g of polymeric fatty acid glyceride ester obtained from the Example 1 of Synthesis, 160 g of tri-methynol propane, and 0.2 g of lithium hydroxide, were charged to the reactor equipped with agitator, reflux condenser, thermometer, and nitrogen inlet and the mixture was heated under a stream of nitrogen to react for 2 hours at 250° C. and then cooling down and prepare the polymeric fatty acid monopoly hydroxyl alcoholide.

Example 4 of Synthesis

450 g of polymeric fatty acid glyceride ester obtained from the Example 2 of Synthesis, 150 g of 1.4 butane diol and 0.3 g of lead oxide were charged to the reactor equipped with agitator, reflux condenser, thermometer, and nitrogen inlet and the mixture was heated under a stream of nitrogen to react for 2 hours at 250° C. and then cooling down and prepare the polymeric fatty acid monopolyhydroxyl alcoholide.

Example 5 of Synthesis

450 g of waste edible oil, 150 g of glycerol and 0.2 g of sodium hydroxide were charged to the reactor equipped with agitator, reflux condenser, thermometer, and nitrogen inlet and the mixture was heated under a stream of nitrogen to react for 2 hours at 250° C. and then cooled down to prepare the polymeric fatty acid monopolyhydroxyl alcoholide.

Example 6 of Synthesis

450 g of waste edible oil, 145 g of di-ethylene glycol and 0.2 g of lead oxide were charged to the reactor equipped with agitator, reflux condenser, thermometer, and nitrogen inlet and the mixture was heated under a stream of nitrogen to react for 2 hours at 250° C. and then cooled down to prepare the polymeric fatty acid monopolyhydroxyl alcoholide.

Example 7 of Synthesis

250 g of polymeric fatty acid mono polyhydroxyl alcoholide that is obtained from Example 3 of Synthesis, 70 g of terephthalic acid, 70 g of isophthalic acid, 200 g of ethylene glycol, 50 g of 1.4 butane diol and 0.2 g of DBTO were charged to the reactor equipped with agitator, reflux condenser, thermometer, and nitrogen inlet and the mixture was heated under a stream of nitrogen to react polycondensation for 7 hours at 230° C. and then cooled down and add 70 g of tri-ethanol amine under 150° C. and react for 3 hours at 200° C. to prepare the polymeric oil modified polyester amine adduct polyol. (acid value for 0.5, hydroxyl value for 350 and amine value of 17)

Example 8 of Synthesis

300 g of polymeric fatty acid mono polyhydroxyl alcoholide that is obtained from Example 4 of Synthesis, 70 g of terephthalic acid, 60 g of adipic acid, 150 g of di-ethylene glycol, 100 g of 1.4 butane diol and 0.2 g of DBTO were charged to the reactor equipped with agitator, reflux condenser, thermometer, and nitrogen inlet and the mixture was heated under a stream of nitrogen to react polycondensation for 10 hours at 230° C. and then cooling down and prepare polymerc oil modified polyester polyol having acid value of 0.9 and hydroxyl value of 410.

Example 9 of Synthesis

300 g of polymeric fatty acid mono polyhydroxyl alcoholide that is obtained from Example 3300 g of PET (Kolon KP185) and 0.3 g of DBTO were charged to the reactor equipped with agitator, reflux condenser, thermometer, and nitrogen inlet and the mixture was heated under a stream of nitrogen to react depolymerization for 3 hours at 250° C. and then cooling down and add 5 g of adipic acid and 100 g of 1.4 butane diol at 170° C. to react polycondensation for 5 hours at 230° C. to prepare the polymeric oil modified polyester polyol having acid value of 0.8 □KOH/g and hydroxyl value of 370 □DKOH/g

Example 10 of Synthesis

300 g of polymeric fatty acid mono polyhydroxyl alcoholide that is obtained from Example 5, 300 g of waste pet chip and 0.3 g of DBTO were charged to the reactor equipped with agitator, reflux condenser, thermometer, and nitrogen inlet and the mixture was heated under a stream of nitrogen to react depolymerization for 3 hours at 250° C. and then cooling down and add 5 g of adipic acid and 100 g of 1.4 butane diol at 170° C. to react polycondensation for 5 hours at 230° C. to prepare the polymeric oil modified polyester polyol having acid value of 0.9 □KOH/g and hydroxyl value of 390 □KOH/g

Example 11 of Synthesis

300 g of polymeric fatty acid mono polyhydroxyl alcoholide that is obtained from Example 5, 300 g of waste pet chip and 0.3 g of DBTO were charged to the reactor equipped with agitator, reflux condenser, thermometer, and nitrogen inlet and the mixture was heated under a stream of nitrogen to react depolymerization for 3 hours at 250° C. and then cooling down and add 5 g of adipic acid and 100 g of 1.4 butane diol at 170° C. to react polycondensation for 5 hours at 230° C., then add 90 g of di-ethanol amine under 150° C. to prepare the polymeric oil modified polyester amine adduct polyol with acid value of 0.8 □KOH/g, hydroxyl value of 450 □KOH/g and amine value of 10 □KOH/g.

Example 12 of Synthesis

300 g of polymeric fatty acid monopolyhydroxyl alcoholide that is obtained from Example 6 and add 300 g of mixed waste with the polyester (PET) and polyamide (nylon), 0.3 g of DBTO were charged to the reactor equipped with agitator, reflux condenser, thermometer, and nitrogen inlet and the mixture was heated under a stream of nitrogen to react depolymerization for 3 hours at 250° C. and then cooling down and add 5 g of adipic acid and 100 g of 1.4 butane diol at 170° C. to react polycondensation for 5 hours at 230° C., to obtain the polymeric oil modified polyester-amid polyol with acid value of 0.9 □KOH/g and hydroxyl value of 455 □KOH/g.

Example 13 of Synthesis

300 g of polymeric fatty acid mono polyhydroxyl alcoholide that is obtained from Example 6 and add 300 g of mixed waste with the polyester (PET) and polyamide (nylon) and 0.3 g of DBTO were charged to the reactor equipped with agitator, reflux condenser, thermometer, and nitrogen inlet and the mixture was heated under a stream of nitrogen to react depolymerization for 3 hours at 250° C. and then cooling down and add 5 g of adipic acid and 100 g of 1.4 butane diol at 170° C. to react polycondensation for 5 hours at 230° C., and add 70 g of tri-ethanol amine under 150° C. to react for 2 hours at 200° C. then prepare the polymeric oil modified polyester-amid amine adduct polyol with acid value of 0.8 □KOH/g, hydroxyl value of 495 □KOH/g and amine value of 15 □KOH/g.

Example 14 of Synthesis

300 g of polymeric fatty acid monopolyhydroxyl alcoholide that is obtained from <Example 5 of Synthesis>, 350 g of polyester resin(polyester resin composition following PCT/KR2002/002359) by recycling of waste pet and 0.2 g of DBTO were charged to the reactor equipped with agitator, reflux condenser, thermometer, and nitrogen inlet and the mixture was heated under a stream of nitrogen to react depolymerization for 3 hours at 250° C. and then cooling down and add 5 g of adipic acid and 100 g of 1.4 butane diol at 170° C. to react polycondensation for 5 hours at 230° C., to obtain the polymeric oil modified polyester polyol with acid value of 0.8 □KOH/g and hydroxyl value of 370 □KOH/g.

Example 15 of Synthesis

300 g of polymeric fatty acid mono polyhydroxyl alcoholide that is obtained from <Example 5 of Synthesis>, 350 g of polyester resin(polyester resin composition following PCT/KR2002/002359) by recycling of waste pet and 0.2 g of DBTO were charged to the reactor equipped with agitator, reflux condenser, thermometer, and nitrogen inlet and the mixture was heated to react for 3 hours at 250° C. and then cooling down and add 5 g of adipic acid and 100 g of 1.4 butane diol at 170° C. to react polycondensation for 5 hours at 230° C., and add 90 g of tri-ethanol amine under 150° C. to react for 3 hours at 200° C. to obtain the polymeric oil modified polyester-amid amine adduct polyol with acid value of 0.7 □KOH/g, hydroxyl value of 370 □KOH/g and amine value of 7 □KOH/g.

Example 16 of Synthesis

300 g of polymeric fatty acid monopolyhydroxyl alcoholide that is obtained from <Example 6 of Synthesis>, 300 g of polyester-amid lump resin following the polyester-amid resin(Patent application number in Korea: 10-2004-0020944) by recycling of mixed wastes of polyester (PET) and polyamide (nylon), 0.2 g of DBTO were charged to the reactor equipped with agitator, reflux condenser, thermometer, and nitrogen inlet and the mixture was heated under a stream of nitrogen to react depolymerization for 3 hours at 250° C. and then cooling down and add 5 g of adipic acid, 100 g of 1.4 butane diol at 170° C. to react polycondensation for 5 hours at 230° C., to obtain the polymeric oil modified polyester-amid polyol with acid value of 0.8 □KOH/g and hydroxyl value of 450 □KOH/g.

Example 17 of Synthesis

300 g of waste polyurethane chip, 200 g of polymeric fatty acid monopoly hydroxyl alcoholide obtained from <Example 5 of Synthesis> and 0.2 g of DBTO were charged to the reaction of 3 hours at 250° C. to carry out depolymerization, then add 50 g of benzoic acid to react with the excessive volume of amine to prepare the polyether-amid polyol for acid value of 0.5 □KOH/g, hydroxyl value of 475 □KOH/g, and amine value of 5 □KOH/g.

Example 18 of Synthesis

350 g of waste polyurethaneforms, 300 g of polymeric fatty acid monopoly hydroxyl alcoholide obtained from <Example 6 of Synthesis> and 0.3 g of DBTO were charged to the reaction of 3 hours at 250° C. to carry out depolymerization then add 50 g of acetate acid to react with the excessive volume of amine to prepare the polyether-fatty acid ester amid polyol having an acid value of 0.5 □KOH/g, hydroxyl value of 495 □KOH/g, and amine value of 6 □KOH/g.

Example 19 of Synthesis

300 g of mixed wastes like the artificial leather coated with the polyurethane on the waste pet, waste polyamide, 300 g of polymeric fatty acid monopoly hydroxyl alcoholide obtained from <Example 5 of Synthesis> and 0.3 g of DBTO were charged to the reaction of 3 hours at 250° C. to carry out depolymerization, then add 50 g of acetate acid to react with the excessive volume of amine to prepare the polyether-polyester-amid polyol having an acid value of 0.5 □KOH/g, hydroxyl value of 485 □KOH/g, and amine value of 5 □KOH/g.

By using the polyol that is prepared from the above Example of Synthesis, the polyurethane and polyurethaneforms, the applied invention, is described in detail under this implementation example.

Implementation Example 1

the mixer setting with the agitator, 300 g of product of the <Example 7 of Synthesis>, 150 g of PP-2000 (Korea Polyol), 100 g of ethyl acetate and 0.5 g of DBTDL are mixed and add 200 g of toluene-di-isocyanate trimer gradually to prepare the lumber coating agent to coat on the floor, and observed the surface after 5 years, and the surface is completely hardened to have outstanding elasticity, hardness and gloss and it particularly has the excellent and firm formed for outstanding durability.

Implementation Example 2

the mixer setting with the agitator, 300 g of product of the <Example 12 of Synthesis> and 150 g of PP-2000 (Korea Polyol) are mixed and add 250 g of Cosmonate M-200 (Keumho Mitsui Chemical) gradually to prepare the lumber coating agent of non-solvent type to coat on the floor, and observed the surface after 5 years, and the surface is completely hardened to have outstanding elasticity and hardness and it particularly has the excellent and firm formed for outstanding durability.

Implementation Example 3

the mixer setting with the agitator, 300 g of product of the <Example 9 of Synthesis>, 150 g of <Example 17 of Synthesis>, 100 g of <Example 19 of Synthesis>, 200 g of PTMEG, 0.5 g of DBTDL, and 200 g of di-methyl form amid in mixture, and MDI of 300 g is added in dropping under 50° C. to obtain the organic solution of polyurethane. Here, 100 g of coloring agent, 20 g of hardening agent are mixed to prepare the urethane coating agent in coating on the non-woven fabric to prepare the artificial leather to prepare, and it was able to obtain outstanding artificial leather with great adhesiveness, elasticity and contraction.

Implementation Example 4

the mixer setting with the agitator, 100 g of product of the <Example 11 of Synthesis>, 100 g of <Example 13 of Synthesis>, 100 g of <Example 15 of Synthesis>, 100 g of <Example 18 of Synthesis>, 100 g of <Example 19 of Synthesis>, and 250 g of Cosmonate M-200 (Keumho Mitsui Chemical) is mixed on the high speed agitator into the mold frame to prepare the synthesis lumber.

Implementation Example 5

the mixer setting with the agitator, 100 g of product of the <Example 11 of Synthesis>, 100 g of <Example 13 of Synthesis>, 100 g of <Example 18 of Synthesis>, 100 g of <Example 19 of Synthesis>, and 300 g of sawdust of wood are premixed and then 250 g of Cosmonate M-200 (Keumho Mitsui Chemical) is mixed on the high speed agitator into the mold frame to prepare the synthesis lumber.

Implementation Example 6

the mixer setting with the agitator, 100 g of product of the <Example 10 of Synthesis>, 100 g of <Example 14 of Synthesis>, 100 g of <Example 16 of Synthesis>, 100 g of PTMEG 100 g, and 0.5 g of promoting agent, are mixed and then 300 g of Cosmonate M-200 (Keumho Mitsui Chemical) is applied gradually, and mixed and placed into the mold frame to prepare the plastic product.

Implementation Example 7

the mixer setting with the agitator, 50 g of product of the <Example 7 of Synthesis>, 50 g of <Example 9 of Synthesis>, 50 g of <Example 12 of Synthesis>, 150 g of <Example 18 of Synthesis>, 9 g of surfactant F-317 (Sinetsu Chemical) 9 g of catalyst, Kaoriser (Kao Co., Ltd.), 30 g of blowing agent cyclopentane, and 7 g of water are mixed, and add 360 g of toluene-di-isocyanate in mixture with the high speed agitator to prepare the light urethane form.

Implementations Example 8

the mixer setting with the agitator, 50 g of product of the <Example 14 of Synthesis>, 50 g of <Example 16 of Synthesis>, 50 g of <Example 17 of Synthesis>, 50 g of <Example 18 of Synthesis>, 50 g of <Example 19 of Synthesis>, 7 g of surfactant F-317 (Shinetsu Chemical), 7 g of catalyst, Kaoriser (Kao Co., Ltd.), 25 g of blowing agent cyclopentane, and 7 g of water are mixed, and then add 300 g of di-phenyl methane di-isocyanate in mixture with the high speed agitator to prepare the light urethane form.

Implementations Example 9

the mixer setting with the agitator, 50 g of product of the <Example 15 of Synthesis>, 50 g of <Example 16 of Synthesis>, 50 g of <Example 17 of Synthesis>, 50 g of <Example 18 of Synthesis>, 50 g of glycerol+EO/PO additive polyon, 50 g of sucrose+EO/PO adduct polyol, 50 g of solbitol+EO/PO adduct polyol, 10 g of surfactant F-317 (Shinetsu Chemical), 10 g of catalyst Dabco 15 (Airo Products), 32 g of blowing agent cyclopentane and 9 g of water are premixed, and then add 400 g of Cosmonate M-200 in mixture with the high speed agitator to prepare the rigid urethane form.

Implementation Example 10

the mixer setting with the agitator, 50 g of product of the <Example 17 of Synthesis>, 50 g of <Example 18 of Synthesis>, 50 g of <Example 19 of Synthesis>, 50 g of glycerol+EO/PO adduct polyol, 50 g of sucrose+EO/PO adduct polyol, 50 g of solbitol+EO/PO adduct polyol, 50 g of bisphenol A+EO adduct polyol, 10 g of surfactant F-317 (Shinetsu Chemical), 10 g of catalyst Dabco 15 (Airo Products), 35 g of blowing agent cyclopentane and 9 g of water premixed, and then add 350 g of Cosmonate N-200 in mixture with the high speed agitator to prepare the rigid urethane form.

INDUSTRIAL APPLICABILITY

As described the high functionality polyols prepared according to recycling method of waste of the present invention by recycling waste polyester, waste polyamide, and waste polyurethane used with the animal and vegetable oils that include the waste edible oil used with the waste polymer are polymerized to facilitate the reaction to convert the double combination double bond of unsaturated fatty acid of fatty ingredients is converted with the conjugate double bond to introduce the Diels-Alder reaction to improve the reactivity to form the sound combination in chemical structure. Therefore, the final product of polyurethane may be prevented the separate leaching phenomenon of fatty and fatty oil the polyols, polyurethanes, and polyurethane forms prepared according to recycling method of waste of the present invention can be employed as industrially useful materials to prepare the polyurethane and polyurethaneforms having excellent mechanical and chemical properties to utilize as the useful material for environment-friendly and economic advantages. 

1. A method of preparing polyol by recycling polymer waste, comprising; (a) depolymerizing of waste polyester that includes the PET; (b) polycondensing the depolymerized products from step (a) with polybasic acid, polyhydricalcohol to obtain polyester oligomer; (c) reacting the oligomer composition from step (b) with the amines to obtain the amine adduct polyol composition having function of surfactant.
 2. The method of claim 1, where in the depolymerizing following trans-esterification waste polyester that include the PET in step (a) with polymeric fatty acid monopolyhydroxylalcoholide in the presence of depolymerization catalysts to obtain polyesterpolyol.
 3. The method of claim 2, where in the reacting following tran-esterfication polymeric fatty acid triglyceride with the polyhdricalcohole in the presence of 0.05˜1% by weight the alkali metal catalyst based on the total the weight of reactant at 200˜260° C., for 1˜5 hours to obtain polymeric fatty acid monopoly hydroxylalcoholide
 4. The method of claim 3, where in the polymerizing the plant and animal oils and fats with the polymeric fatty acid tri-glyceride by converting double bond of unsaturated fatty acid in conjugate double bond by adding 0.05˜1% weight the alkali metal catalyst based on the weight of oils and fats.
 5. the method of claim 3, where in the polymerizing the waste edible oil with the polymeric fatty acid tri-glyceride by converting the double bond of unsaturated fatty acid in conjugate double bond by adding 0.05˜1% weight the alkali metal catalyst based on fatty and fatty oil.
 6. the method of claim 2, where in the polymeric fatty acid monopolyhydroxy alcoholide is at least one selected from the group consisting of polymerized soy bean oil mono glyceride, polymerizedtalloilmonoglyceride, polymerized oliver oil mono tri-methylol propanide, polymerized palm oil mono pentaerythritol, polymerized bean oil mono ethylene glycolide, polymerized corn germ oil mono di-ethylene glycolide, polymerized fish oil mono glyceride, polymerized fish oil mono 1.4 butanollide, polymerized waste edible oil mono glyceride, polymerized waste edible oil mono di-ethylene glycolide, dimer acid mono glyceride, dimer acid mono di-ethylene glycolide.
 7. The method of claim 1, where in the polybasic acid is at least one selected from the group consisting of phthalic anhydride, isophthalic acid and its ester, terephthalic acid and its ester, 5-DMSSIP, adipin acid and its ester, azellaic phosphoric acid, Sebacin acid, anhydrous tetrahydropthal acid, anhydrous maleic acid, pumal acid, itagon acid, tri-merit acid, anhydrous tri-merit acid, anhydrous piromerit acid, succine acid, cyclohexane di-carboxyl acid, naphthalene di-carboxyl acid, benzoic acid, dimer acid, C9˜C27 fatty acid.
 8. the method of claim 1, where in the polybasic acid is used in an amount of 3˜50% by weight based on the weight of the depolymerized oligomer composition.
 9. the method of claim 1, claim 2, and claim 5, where in the polyhydricalcohol is at least one selected from the group consisting of ethylene glycol, propylene glycol, di-ethylene glycol, 1.4 butane diol, 1.6 hexane diol, neopentyle glycol, di-propylene glycol, tri-methylol propane, glycerol, pentaerythritol.
 10. the method of claim 1, where in the polyhydricalcohol is used in an amount of 5˜90% by weight based on the weight of the depolymerized products.
 11. the method of claim 3 and claim 5, where in the polyhydricalcohol is used in an amount of 5˜90% by weight based on the weight of the polymeric fatty acid triglyceride.
 12. the method of claim 2, where mixing ratio of polymeric fatty acid monopoly hydroxyl alcoholide to the waste polyester that includes the PET is used in the range of 1:0.1˜10 by weight.
 13. the method of claim 2, where in the depolymerizing are carried out in the presence of 0.1˜1% by weight of a reaction catalysts with tins and alkali metal catalyst based on the weight of the depolymerized products.
 14. the method of claim 1, where in the polyethyleneterephthlate that is obtained by polycondensing for terephthalic acid and ethyleneglycol having inctinctive viscosity (I.V) of 0.5˜0.8, melting temperature of 210˜230° C., weight average molecular weight of 5,000˜50,000.
 15. the method of claim 1, where in the amines is at least one selected from the group consisting of tri-ethyle amine, ethanol amine, di-methylethanol amine, di-ethylentry amine, tri-ethylene di-amine, dexadezyl di-methyl amine, N-methylmorplyne, tetra-methylethylene di-amine, di-methyl cyclohexyl amine, di-alkilpyperadines and others.
 16. the method of claim 1, where in the amine is used in an amount of 1˜50% by weight based on the weight of the depolymerized oligomer composition.
 17. A method of preparing polyol by recycling a polymer waste, the method comprising; (a) depolymerizing following trans-esterification the mixed waste of polyester and polyamide with the polymeric fatty acid monopolyhydroxyl alcoholide; (b) polycondensing the depolymerized products from step (a) with polybasic acid, polyhydricalcohol to obtain polyester-amide oligomer; (c) reacting the oligomer composition from step (b) with the amines to obtain the amine adduct polyol composition having function of surfactant.
 18. the method of claim 17, where in the mixed waste materials are wasted plastic bottle, wasted blended fibers, wasted carpet, wasted composite molded articles that are crashed.
 19. the method of claim 17, where in the polymeric fatty acid monopolyhydroxy alcoholide is at least one selected from the group consisting of polymeric soybean fatty acid monoglyceride, polymerictall fatty acid monodi-ethyleneglycolide, polymeric corn germ fatty acid monosorbitolide, polymeric palm fatty acid tri-methylol propanide, polymeric fish fatty acid monopropylenglycolide, polymeric waste edible oil fatty acid mono glyceride, dimer acid mono glyceride, dimer acid ethylene glycolide, dimer acid propylene glycolide.
 20. the method of claim 17, where in the mixing ratio of polymeric fatty acid monopolyhydroxy alcoholide to mixed waste polymer material is used in the range of 1:0.1˜10 by weight
 21. A method of preparing polyester polyol is synthesized by reacting pure monomer, the method comprising; (a) polycondensing a polymeric fatty acid monopolyhydroxy alcoholide with polybasic acid, polyhydric alcohol in the presence of ester reaction catalyst to obtain polyester oligomer composition; (b) reacting the oligomer composition from step (a) with the amines to obtain amine adduct polyol having function of surfactant
 22. the method of claim 21, where in reacting are carry out in the presence of 0.1˜1% by weight of reaction catalyst with tins, alkali metal oxide and its hydroxide based on the weight of the total weight of reactant.
 23. A method of preparing polyol by recycling polymer waste, comprising; (a) where in the depolymerizing the waste of polyurethane elastomer polyurethane forms with depolymeric agent; (b) polycondensing the depolymerized product from step (a) with the polybasic acid; (c) processing and controlling the product composition including excess amines from step (b) with carboxy acid
 24. A method of preparing polyol by recycling polymer waste, comprising; (a) depolymerizing the polyurethanes artificial leather waste that is made up on waste PET, polyamide mixed spinning fiber and non-woven fabric with the polyurethane coating with depolymeric agent; (b) polycondensing the depolymerized product from step (a) with the polybasic acid, polyhydricalcohol to obtain depolymerized oligomer composition; (c) processing and controlling the product composition containing excess amine from step (b) with the carboxy acid
 25. the method of claim 23 and claim 24, where in the depolymerizing the polymer waste with polyhydric alcohol to obtain polyetherpoyol and polyether-polyester-amine polyol.
 26. the method of claim 23 and claim 24, where in the depolymerizing the polymer waste with polymeric fatty acid monopolyhydroxy alcoholide to obtain polyetherpoyol and polyether-polyester-amine polyol.
 27. the method of claim 23 and claim 24, where in the carboxy acid is at least one selected from the group consisting of acetate acid, oxalic acid, benzoic acid, salicylic acid.
 28. the method of claim 23 and claim 24, where in the carboxy acid is used in an amount of 1˜20% by weight, based on the weight of the depolymerized product.
 29. where in the polyol obtained by the method according to claim 23 or 24, having an acid value for 0.1˜1 □KOH/g, hydroxyl value for 100˜500 □KOH/g, and weight average molecular weight of 1,000˜50,000.
 30. where in the polyester-amine adduct polyol having an acid value of 0.5˜2 □KOH/g, hydroxyl value of 100˜500 □KOH/g, and weight average molecular weight of 1,000˜50,000 obtained by the method according to the present invention is used as preparing of rigid polyurethane forms by reacting isocyanate with polyol blowing agent, reaction catalyst, surfactant, and additive agent and polyester-amine adduct polyol is used in an amount of 1˜95% by weight based on the weight of the total polyol to obtain rigid polyurethane forms.
 31. the method of claim 1, claim 17, claim 21, claim 23 and claim 24 where in the polyols have 1˜70% by weight of C9˜C27 fatty acid radical in the molecular structure based on the weight of total carboxyl acid radical the polyols same are polymeric fatty acid modified polyester amine adduct polyol, polymeric fatty acid modified polyester-amide polyol, polymeric fatty acid modified polyether polyol
 32. the method of claim 30, where in the polyol is polymeric fatty acid modified polyester-amide polyol containing C9˜C27 fatty acid that is used in an amount of 195% by weight based on the weight of the total polyol to obtain rigid polyurethane forms
 33. the method of claim 30, where in the polyol is polymeric fatty acid modified polyester polyol having 1˜50% by weight dimer acid that is used in an amount of 1˜95% by weight based on the weight of the total polyol to obtain rigid polyurethane forms
 34. the method of claim 30, where in the polyols are mixed polyols that have 5˜70% by weight of polyester-amine adduct polyol, 5˜60% weight % of glycerol+EO/PO adduct, 5˜60 weight % of polyether polyol, 5˜50 weight % of pentaerythritol+EO/PO adduct polyether polyol, 5˜50 weight % of sucrose+EO/PO adduct polyether polyol to obtain polyurethane forms.
 35. the method of claim 30, where in the polyols are mixed polyols that have 5˜70% by weight of polyether fatty acid ester polyol, 5˜60 weight % of glycerol+EO/PO adduct, 5˜60 weight % of polyether polyol, 5˜50 weight % of pentaerythritol+EO/PO adduct polyether polyol and 5˜50 weight % of sucrose+EO/PO adduct polyether polyol.
 36. the method of claim 30, where in the polyols are mixed polyols that have 5˜70% by weight of polymeric fatty acid modified polyester-amide polyol, 5˜60 weight % of glycerol+EO/PO adduct, 5˜50 weight %, of pentaerythritol+EO/PO adduct polyether polyol and 5˜50 weight % of sucrose+EO/PO adduct polyether polyol.
 37. the method of claim 30, where in the isocyanate is toluene di-isocyanate to obtain the polyurethaneforms.
 38. the method of claim 30, where in the isocyanate is Crude-MDI. to obtain the polyurethaneforms.
 39. the method of claim 30, where in the isocyanate has NCO % 28˜33 to obtain the polyurethaneforms.
 40. the method of claim 30, where in the reacting ratio of NCO radical of isocyanate to hydroxyl radical of polyol is NCO/OH of 1.0˜1.5 and it is using flame retardants to secure the non-flammability as well as the cross-linked agent for promoting the hardening to obtain the polyurethane forms.
 41. Where in the polyols are mixed polyols that have 5˜70% by weight of polymeric fatty acid modified polyester-amide polyol 5˜60 weight % of PTMEG is reacted with 5˜70% by weight of isocyanate to obtain solvent free polyurethane coating material.
 42. Where in the polyols are mixed polyols that have 5˜70% by weight of polymeric fatty acid modified polyether polyol 5˜60 weight % of poly-propylene glycol is reacted with 5˜70% by weight of isocyanate to obtain solvent free coating material for wood and molding article.
 43. Where in the polyols are mixed polyols that have 5˜70% by weight of polymeric fatty acid modified polyester-amide polyol 5˜60 weight % of poly-propylene glycol 5˜70 weight % of wooden sawdust is reacted with of isocyanate to obtain artificial wood. 